Nyob rau hauv niaj hnub kev lag luam steel, ib yam khoom sawv tawm raws li lub caj qaum ntawm kev tsim kho engineering vim nws cov khoom tshwj xeeb - Q345 steel kav, muab qhov sib npaug zoo ntawm lub zog, tawv, thiab ua haujlwm tau zoo.
Q345 yog cov hlau tsis tshua muaj hlau, yav tas los hu ua 16Mn. Lub "Q" nyob rau hauv nws lub npe sawv cev rau lub zog tawm los, thaum "345" qhia qhov tsawg kawg nkaus lub zog ntawm 345 MPa ntawm chav tsev kub. Ua raws li GB / T 1591-2008 tus qauv, nws pom ntau daim ntawv thov hauv cov txuas hniav, cov tsev, tsheb, nkoj, cov hlab ntsha siab, thiab cov haujlwm ua haujlwm cryogenic. Nws yog feem ntau muab nyob rau hauv kub-dov los yog normalized tej yam kev mob.
Compatibility hauv kev ua tau zoo yog lwm qhov zoo dua ntawm Q345 steel kav. Nws cov ntsiab lus tsis tshua muaj carbon (feem ntau ≤0.20%) thiab ua kom zoo tshaj plaws ntawm cov khoom sib xyaw ua kom zoo weldability. Txawm hais tias siv phau ntawv hlau arc vuam, submerged arc vuam, los yog roj shielded vuam, ruaj khov thiab txhim khu kev qha welded pob qij txha tuaj yeem ua tiav, ua tau raws li qhov xav tau ntawm kev tsim kho ntawm qhov chaw. Tsis tas li ntawd, nws cov khoom ua haujlwm txias thiab kub ua haujlwm tso cai rau kev tsim khoom rau hauv ntau yam khoom siv los ntawm cov txheej txheem xws li dov, dabtsi yog khoov, thiab stamping, haum rau ntau hom engineering tsim.
Daim ntawv thov toj roob hauv pes: Los ntawm Landmark Structures rau Energy Infrastructure, Q345 steel kav tau permeated txhua yam ntawm kev lag luam niaj hnub. Nyob rau hauv kev tsim kho thiab choj engineering, lawv underpin lub moj khaum ntawm skyscrapers thiab ua tus thawj girders rau dej-spanning choj, leveraging lawv lub zog siab kom txo tau cov yam ntxwv nyhav thaum withstand seismic thiab siab cua loads los ntawm enhanced toughness. Engineering machinery booms thiab thav duab, hnyav-duty tsheb tsav shafts, thiab tshuab cuab tam txaj txhua yam xav tau cov ntaub ntawv sib txuas lub zog thiab qaug zog. Los ntawm kev kos duab txias thiab cov txheej txheem kub nthuav dav, Q345 cov kav hlau steel ua tau raws li qhov xav tau ntawm cov khoom sib txawv, ua kom cov cuab yeej siv tau ntev. Hauv kev siv hluav taws xob thiab cov raj xa dej-xws li cov kav xa hluav taws xob thiab roj, cov kav dej hauv nroog thiab cua sov, thiab cov kav dej superheater hauv fais fab nroj tsuag boilers-cov ntaub ntawv yuav tsum tiv taus ob sab hauv siab thiab sab nraud corrosion. Q345 steel kav, kho nrog kev tiv thaiv corrosion saum npoo (xws li, pleev xim, galvanizing), ua haujlwm ruaj khov rau lub sijhawm ntev hauv cov av noo, plua plav, lossis me me corrosive ib puag ncig, tiv thaiv kev nyab xeeb thiab siv zog thauj mus los.
Txheej txheem Assurance:Kev cog lus zoo los ntawm Ingot mus rau cov khoom tiav Lub creation ntawm hwm Q345 steel kav cia siab rau cov txheej txheem ntau lawm tswj. Seamless yeeb nkab tau tho, dov, thiab sizing kom ntseeg tau tias cov phab ntsa tuab thiab qhov tseeb. Welded kav yog tsim los ntawm high-frequency los yog submerged arc welding, ua raws li los ntawm tsis-destructive kuaj thiab kev ntxhov siab-relieving tshav kub kev kho mob kom tshem tawm tej kev puas tsuaj thaum siv. Txhua qhov tsim nyog Q345 steel yeeb nkab tau dhau los ntawm ntau qhov kev tshuaj xyuas - suav nrog kev sim tensile, kev sim cuam tshuam, thiab ntsuas qhov nyuaj - los lav kev ua tau zoo.
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Tsav los ntawm kev nce qib ntawm "dual carbon" cov hom phiaj thiab qhov kev thov nce ntxiv rau kev lag luam teeb pom kev zoo, Q345 steel kav tau hloov mus rau kev ua haujlwm zoo dua thiab kev ruaj ntseg ib puag ncig. Ntawm ib sab, los ntawm kev ua kom zoo microalloying cov tswv yim (xws li ntxiv cov ntsiab lus xws li niobium thiab titanium), lub cim tshiab ntawm Q345 steel kav txuas ntxiv txo qis kev siv alloy thaum tuav lub zog, ua tiav "ntau dua nrog tsawg dua." Ntawm qhov tod tes, kev txawj ntse kev tsim kho tshiab - los ntawm kev saib xyuas lub sijhawm ntawm cov hlau molten steel rau kev kwv yees cov khoom tiav - txhim kho cov khoom ruaj khov thiab cov txiaj ntsig tau los ntawm qhov kawg-rau-kawg tswj digital.
Hauv daim ntawv thov scenarios, Q345 steel kav yog nthuav mus rau hauv lub zog tshiab - txhawb cov qauv rau cov cua turbine yees, cov khoom siv thauj khoom rau cov khoom siv hluav taws xob photovoltaic, thiab cov kav dej hydrogen thauj txhua qhov kev xav tau tshiab ntawm cov khoom siv zog thiab huab cua tsis kam. Los ntawm kev ua tau zoo, Q345 steel kav yog maj mam dhau los ua cov khoom nyiam hauv cov teb no. Los ntawm lub nroog thaj chaw mus rau lub zog txoj kev hauv tsev, los ntawm cov tshuab hnyav rau pej xeem kev tsim kho, Q345 steel kav qhia txog kev lag luam tus nqi ntawm cov hlau tsis tshua muaj zog hlau los ntawm lawv cov txiaj ntsig zoo ntawm lub zog siab, siab tawv, thiab kev ua haujlwm yooj yim. Lawv sawv tsis tsuas yog ua pov thawj rau kev nce qib hauv cov khoom siv hlau, tab sis kuj yog qhov tseem ceeb ntawm "steel nraub qaum" ntawm kev tsim kho niaj hnub engineering. Nyob rau yav tom ntej kev lag luam theem, Q345 steel kav yuav txuas ntxiv rau cov kev xav tau ntawm lub sijhawm los ntawm kev tsim kho tshiab thiab kev hloov kho tshiab, txhaj "steel zog" rau hauv ntau cov haujlwm super.
Post lub sij hawm: May-01-2025
